B c

B cB cB cB cB cB c
B cB cB cB cB cB c
B cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB cB c